Determination of Charge and Level Shift of Manganese in Some Manganese Chemicals and Ores by X-Ray Emission Spectroscopy
| Autor: | B. S. Acharya, Rajeev, L. D. Pradhan |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
chemistry.chemical_classification
Fermi level Binding energy General Engineering Analytical chemistry General Physics and Astronomy chemistry.chemical_element Electronic structure Manganese symbols.namesake Nuclear magnetic resonance Transition metal chemistry Quadrupole symbols Emission spectrum Inorganic compound |
| Zdroj: | Japanese Journal of Applied Physics. 29:1278 |
| ISSN: | 1347-4065 0021-4922 |
| Popis: | X-ray emission spectra usually give a direct picture of the occupied states above Fermi level and the K emission band reflects the distribution of electrons of p-symmetry in the outer levels. The `3d' transition metal compounds exhibit a wide variety of properties due to their valence band consisting of s, p and d like states. These `d' states are strongly localised and influence the properties of the compounds through s-d, p-d hybridization. In the present investigation, the level shift of the 2p3/2 states of Mn in MnO2, MnPO4, MnSO4, KMnO4, δ-MnO2, Mn-Nodule and BCS-Mn-Ore has been determined. Besides, the spectrum of Mn has been resolved into several bands like A, B, F, G and X following the Gaussian peak assumption. It has been found that the binding energies of all chemicals and ores except KMnO4 show higher value compared to pure Mn 2p3/2 state and quadrupole transitions have negligible effect on the X-ray transitions. |
| Databáze: | OpenAIRE |
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